My previous experience with Genesys is with filter or matching circut simulations. Now that I'm attempting an amplifier simulation I'm having trouble with a non-standard transistor model. I guess I have 2 questions that I'd like to hear responses to:
1) Is it possible to run a linear simulation using spice transistor models?
2) Is there any true utility in providing a spice transistor model when running linear simulations - this assumes that it was possible in the first place. In other words is there anything to gain by using the spice file if an option to use the device data file existed?
1) Is it possible to run a linear simulation using spice transistor models?
2) Is there any true utility in providing a spice transistor model when running linear simulations - this assumes that it was possible in the first place. In other words is there anything to gain by using the spice file if an option to use the device data file existed?
* Sure, GENESYS linearizes the nonlinear model around its DC operating point and uses that data in the linear analysis. This does require the HARBEC nonlinear simulator as solving DC is a nonlinear problem
2) Is there utility in using the nonlinear model?
* Yes. The primary advantage is that you can adjust (tune or optimize) bias to see the effect on match, gain, and isolation. You trade off some level of accuracy, but for well-extracted SPICE models, this is a minor trade-off.